Finding the Fourth Proportional to 460,812.02, 691,217.49 and 128,388.02
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Solution
The fourth proportional to 460,812.02, 691,217.49 and 128,388.02 is: 192,581.88
Step by Step Solution
- Step 1: Write the proportion equation
460,812.02 : 691,217.49 = 128,388.02 : x - Step 2: Convert to fraction form
460,812.02/691,217.49 = 128,388.02/x - Step 3: Cross multiply
460,812.02x = 691,217.49 × 128,388.02 - Step 4: Simplify right side
460,812.02x = 88,744,044,930.47 - Step 5: Solve for x
x = 88,744,044,930.47/460,812.02 - Step 6: Final answer
x = 192,581.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.